Samsung RD-PQ, change Tizen on Android (install board from S3 donor)

Summary:

• I swap motherboards on my Samsung RD-PQ and high-grade Samsung GT-i9003;
• In the process, it turns out that the boards are identical, although, judging by the topic on xda-developers (eng.) , There must be another board;
• From the preceding paragraph follows the possibility of a purely software android firmware method for JTAG. This question is not considered in the article, since (a) I expected to see another fee; (b) it is clear from the photo on xda that the arms for this must be fairly straight

Under the cut are quite large photos, I apologize in advance for their quality.

As we know, Samsung recently changed the rules for the Tizen App Challenge . Now only applications for watches are in demand. The fate of the Samsung Z is also unclear, as is Tizen’s overall outlook. However, according to kirikch hundreds of Samsung RD-PQ were distributed to developers. I received my copy at the devlab event in Yaroslavl last fall (and almost missed the train because of this). Do not disappear now the good, let's make a Galaxy S3 out of it.

After studying the available information on the network and finding the same thread on xda-developers, I decided to purchase a board from S3 and just put it in the RD-PQ package. The donor can easily be found in second-hand offers. From it, only the motherboard is needed, but the screen state does not matter. Therefore, you can take for a penny any broken smartphone.
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Parse:

Phones understand the same and very simple. We unscrew all the screws that are visible around the perimeter, and the black screw on the SIM / sd card holder. The case and the top cover on the latches. There are many S3 disassembly instructions online.



Differences - RD-PQ has worse case quality, softer plastic. Also in the photo you can see that he has cut off the antenna wire (on the right).

We get paid

The one that is lighter is from RD-PQ. In general, as you can see, they are identical.



For comparison, a photo with xda-developers. In my case, the GT-I9300 is written , the missing element is soldered. The output is a board from a full-fledged Galaxy S3, with Tizen firmware and a cut off antenna.

Now you just need to collect everything in reverse order, swapping the board.

The result of the transmigration of souls:

Everything turned on and earned immediately without any problems. Now I have a full-fledged smartphone in the RD-PQ case and a tizen-version with a broken screen that will go to the dustbin of history in the back box.